Michael David Dunn has pleaded "not guilty" to murder in the shooting death of Jordan Russell Davis, a 17-year-old African-American high school student, during an incident at a Florida gas station last year.

The shooting is gaining nationwide attention because of its similarities to the Trayvon Martin shooting. NBC News reports:

A Florida gun collector has pleaded not guilty to a murder charge alleging that he opened fire on a car full of unarmed teenagers, killing one, in an altercation that police say stemmed from loud music.

Michael David Dunn, 45, acted "as any responsible firearms owner would have," his lawyer said of the Friday evening incident at a gas station outside a convenience store in Jacksonville, Fla. …

"Once all the facts come out, that what really happened is known, it will be very clear that Mr. Dunn acted responsibly and as any responsible firearms owner would have acted under these same circumstances," said his attorney, Robin Lemonidis, reported FirstCoastNews.com, the website for NBC station WTLV in Jacksonville.